compatibility

问题 What are the C# 3.0 language features we can use in an application that targets .Net 2.0 framework ? PS:I know few like Lambda expressions and var keyword 回答1: Please see here: Using C# 3.0 (.Net 3.5) syntax in a .Net 2.0 application For a complete run down of what you can and can't do when targeting the .NET 2.0 Framework and using C# 3.0. In summary: You can't use the new 3.5 assemblies (System.Data.Linq, System.Xml.Linq, System.Core). You can't use Linq/Query Extensions or Extension

问题 I have a System.Drawing.Bitmap currently and I need to convert it into an stdole.StdPicture. Currently I'm using: var pic = (stdole.StdPicture)Microsoft.VisualBasic.Compatibility.VB6.Support.ImageToIPicture (MyDLL.Properties.Resources.Img); // this is a System.Drawing.Bitmap but I get a Compiler Warning: Warning 'Microsoft.VisualBasic.Compatibility.VB6.Support.ImageToIPicture(System.Drawing.Image)' is obsolete: '"Microsoft.VisualBasic.Compatibility.* classes are obsolete and supported within

问题 I am trying to make some of my code Python 2 and 3 compatible. At the moment I am struggling with functions like range / xrange and methods like dict.items / dict.iteritems . Ideally I would like my code to be able to use the former in Python 3.x and the latter in Python 2.x. Using if / else seems to me to be the easiest way to implement this: if py >= 3: for item in array.items() ... else: for item in array.iteritems() However, doing like that results in lots of repeated and ugly code. Is

问题 if I have installed version of GIT 1.9.4 and the repository on server is using 1.8.2 would there be a problem? Are there any issues with working using different versions of GIT? Does every person in a team should have the same version or does it not matter? Could find any info on that in docs, I'd be grateful for your help. 回答1: 1.9.4 and 1.8.2 are pretty close, but there may have a few problems between different git versions, mainly varying behaviors. If you want to know what have changed,

问题 I am building a web app for use on PCs. What are the HTML5 tags to stay away from to prevent compatibility issues with Browsers like IE8 and above? Note: Most questions are 1-3 years old on this subject. 回答1: You asked what HTML5 tags to stay away from. Well Some of the tags from HTML5 from my knowledge were made for semantic reasons. like the following for example. <article> <section> <aside> <nav> <header> <footer> ..ect These are almost fine to work with, and just require a bit of CSS eg.

问题 I am compiling a program with Visual C++ 2010 but I don't want everyone to have to download the redistributable package to run my programs. Most people that will be using my program already have the VC++ 2008 redistributable package though, so is there a way I can compile it with compatibility with VC 2008? Or is there a place I can download VC 2008 express? 回答1: Visual Studio 2010 has an option to compile with Visual Studio 2008 toolset. You can find it under your project settings. I think

问题 I just want to confirm my understanding of how AES works. If company#1 is encrypting the data, and sending this data to company#2 to decrypt, and let's presume that one of them uses C# and the other Java. As long as both are using the same shared secret key, is there anything else setting/configuration wise both parties should agree upon to make sure the data is correctly encryption and decrypted? 回答1: There is a lot that both have to agree upon: shared secret key How long is it? (Is key

问题 I'm writing a little JavaScript tool for myself that I plan on making available to other people and it uses jQuery. My dream for this little utility is for people to be able to include a single .js file from a remote source and, when that file is loaded, have it check to see if jQuery has already been included and, if it has, make sure it's a recent enough version so as to be compatible with what my code needs to do. Some pseudocode which may explain my issue more clearly (this code would

问题 Here's a link to jmpress: jmpressjs.github.io/jmpress.js Notice how the animations do not work in Chrome 44 (latest version of Chrome as of this post). I tried running this same page in Safari 8.0.7, and the animations worked just fine. Does anyone know why this is happening? 回答1: this question gets old but is still relevant. The issue is still open on github (issue #179) but there is a fix in comments (here), that works fine for me at least :) In the jmpress.js file, in the mapProperty

问题 I have created single select button group using radio button with label tag using css display: table and table-cell for text content exceed or overflow in each button. It's working fine all browsers (Chrome, Firefox & IE) expect Safari browser. I am getting space between each button. I have tried some hacks and online solutions but i am not able to find/fix proper solution. screen shot: HTML Code: <div class="selection-group"> <span class="field-label" id="singlecard">Title field</span> <div